Registration Dossier
Registration Dossier
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EC number: 201-204-4 | CAS number: 79-41-4
Toxicity to soil microorganisms
Administrative data
- Endpoint:
- toxicity to soil microorganisms
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: OECD guideline study; GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 992
Materials and methods
- Principles of method if other than guideline:
- other: OECD
- GLP compliance:
- yes
Test material
- Reference substance name:
- Methacrylic acid
- EC Number:
- 201-204-4
- EC Name:
- Methacrylic acid
- Cas Number:
- 79-41-4
- Molecular formula:
- C4H6O2
- IUPAC Name:
- methacrylic acid
- Test material form:
- liquid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test organisms
- Test organisms (inoculum):
- other: aerobic microorganisms
Study design
- Total exposure duration:
- 28 d
Test conditions
- Details on test conditions:
- Toxicity was measured as a reduction in soil microorganism respiration of CO2. MAA was dissolved in water and the soils (sandy loam soil) amended with MAA yielding concentration of 0.1 - 1000 mg/l. Nutrients were added. CO2 was collected and quantified at various time intervals up to 28 days.
- Nominal and measured concentrations:
- 0.1 - 1000 mg/l
Results and discussion
Effect concentrations
- Duration:
- 28 d
- Dose descriptor:
- EC10
- Effect conc.:
- 1 000 other: mg/l
- Details on results:
- ethanol was present.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
